[INFO] cloning repository https://github.com/dat2/rust-zeromq-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dat2/rust-zeromq-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdat2%2Frust-zeromq-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdat2%2Frust-zeromq-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8a377801f9043acb16b49f3e0f191688608d169b
[INFO] checking dat2/rust-zeromq-playground against try#72f88fc4e9458f89516a0b8b0868f3718aec5b47 for pr-74989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdat2%2Frust-zeromq-playground" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dat2/rust-zeromq-playground on toolchain 72f88fc4e9458f89516a0b8b0868f3718aec5b47
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dat2/rust-zeromq-playground
[INFO] finished tweaking git repo https://github.com/dat2/rust-zeromq-playground
[INFO] tweaked toml for git repo https://github.com/dat2/rust-zeromq-playground written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/dat2/rust-zeromq-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded post-expansion v0.1.0
[INFO] [stderr]   Downloaded num_cpus v1.1.0
[INFO] [stderr]   Downloaded syn v0.9.2
[INFO] [stderr]   Downloaded serde_json v0.8.3
[INFO] [stderr]   Downloaded serde_codegen_internals v0.10.0
[INFO] [stderr]   Downloaded quote v0.3.3
[INFO] [stderr]   Downloaded serde_derive v0.8.15
[INFO] [stderr]   Downloaded serde_codegen v0.8.15
[INFO] [stderr]   Downloaded serde v0.8.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 412077f087cd340de0a663cb3778b4066a81be7ce505724c1bfc42d2e8de6caf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "412077f087cd340de0a663cb3778b4066a81be7ce505724c1bfc42d2e8de6caf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "412077f087cd340de0a663cb3778b4066a81be7ce505724c1bfc42d2e8de6caf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "412077f087cd340de0a663cb3778b4066a81be7ce505724c1bfc42d2e8de6caf", kill_on_drop: false }`
[INFO] [stdout] 412077f087cd340de0a663cb3778b4066a81be7ce505724c1bfc42d2e8de6caf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5dbc0ea2e8a1bc6a7194bf0e9067d38709da3e546bbd774966947199d47e0d17
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5dbc0ea2e8a1bc6a7194bf0e9067d38709da3e546bbd774966947199d47e0d17", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v0.3.3
[INFO] [stderr]    Compiling zmq v0.8.0 (https://github.com/erickt/rust-zmq.git#5cd311a6)
[INFO] [stderr]     Checking dtoa v0.2.2
[INFO] [stderr]     Checking serde v0.8.15
[INFO] [stderr]     Checking itoa v0.1.1
[INFO] [stderr]     Checking num_cpus v1.1.0
[INFO] [stderr]    Compiling zmq-sys v0.8.0 (https://github.com/erickt/rust-zmq.git#5cd311a6)
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]    Compiling syn v0.9.2
[INFO] [stderr]    Compiling serde_codegen_internals v0.10.0
[INFO] [stderr]    Compiling post-expansion v0.1.0
[INFO] [stderr]    Compiling serde_codegen v0.8.15
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_codegen-0.8.15/src/lib.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | extern crate syntax;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde_codegen`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "5dbc0ea2e8a1bc6a7194bf0e9067d38709da3e546bbd774966947199d47e0d17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dbc0ea2e8a1bc6a7194bf0e9067d38709da3e546bbd774966947199d47e0d17", kill_on_drop: false }`
[INFO] [stdout] 5dbc0ea2e8a1bc6a7194bf0e9067d38709da3e546bbd774966947199d47e0d17
